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Find my filterHayward Star-Clear Plus C-1200Hayward Star-Clear Plus C-900Hayward Star-Clear Plus C-1750 / C-1900See all: Pool filtersRainbow Dynamic 50 (spa)Rainbow Dynamic 35 (spa)Rainbow Dynamic 25 (spa)See all: Spa filtersHow to clean a filter cartridgeWhen to replace a cartridgeSand vs cartridge vs DESee all: GuidesSize calculatorReminders

27 filter models · Pleatco, Unicel, Filbur, OEM

The right replacement filter cartridge: fast.

Search by your filter’s model or any part number to find the matching cartridge, check the dimensions, and compare prices across stores.

Find my filterBrowse by model
  • Manufacturer cross-references
  • Sizes to double-check
  • Prices compared

Find my filter

    Searches Pleatco, Unicel, Filbur and OEM numbers. Search by size

    Popular replacement cartridges

    All filters
    Pool filter · HaywardHayward Star-Clear Plus C-1200 Pleatco PA120 / C-8412 / CX1200-RE Pool filter · HaywardHayward Star-Clear Plus C-900 Pleatco PA90 / C-8409 / CX900-RE Pool filter · HaywardHayward Star-Clear Plus C-1750 / C-1900 Pleatco PA175 / C-8417 / CX1750-RE Pool filter · HaywardHayward Star-Clear C-500 Pleatco PA50 / C-7656 / CX500-RE Pool filter · PentairPentair Clean & Clear Plus 420 Pleatco PCC105 / C-7471 / FC-6470 Spa filter · Rainbow / spaRainbow Dynamic 50 (spa) Pleatco PRB50-IN / C-4950 / FC-2390 Pool filter · HaywardHayward Star-Clear C-250 Pleatco PA25 / C-7626 / CX250-RE Pool filter · HaywardHayward Star-Clear II C-800 Pleatco PA80 / C-8600 / CX800-RE

    Get the right cartridge the first time

    1. Find the modelIt’s on the filter tank’s label, or printed on the old cartridge’s end cap.
    2. Cross-referenceSearch the model or part number in our finder.
    3. MeasureLength, outside diameter and the top and bottom openings must match.
    4. Compare pricesSame cartridge, different stores: prices vary a lot.

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    Free filter tools

    Filter finderSearch any part number or modelFilter size calculatorHow big a filter your pool needs

    Free charts and checklists

    Print them, pin them, share them.

    See them all
    Pool and spa filter cartridge cross-reference chartCartridge filter cleaning checklistPool maintenance calendar

    Filter care guides

    All guides
    How to clean a pool filter cartridgeHow and when to clean a pool or hot tub filter cartridge: rinsing, soaking, degreasing and acid washing, and …When to replace a pool filter cartridgeHow long pool and spa filter cartridges last and the signs it’s time to replace yours: torn or flattened plea…Sand vs cartridge vs DE filtersSand, cartridge and DE pool filters compared: filtration fineness, maintenance, water use, cost and which sui…Pool filter sizesHow to measure a pool or spa filter cartridge (length, outside diameter and top/bottom openings) and why sq f…Hot tub filter replacementHow to find the right replacement hot tub filter, how often to replace it, how to measure it, and how to keep…Pleatco vs Unicel vs FilburHow the three big aftermarket pool filter cartridge brands compare, how their part numbers work, and how to c…